Shoes ventilation system

ABSTRACT

The separate insole  2  with the, ventilation system is separately insertable in the shoe and the separate insole  2  has longitudinal grooves I downwards, which extend from the space of the heel to the space of the toe through bottom surface an elastic foam layer of the separate insole  2.  The rear ends of the longitudinal grooves  1  have an air inlet in the space of the heel and the front ends of the longitudinal grooves  1  have an air outlet in the space of the toe. During step, the longitudinal grooves  1  are gradually compressed from the heel to the toe and air is forced from the longitudinal grooves  1  to the inner toe space of the shoe.

TECHNICAL FIELD

The separate insole with ventilation system is suitable for almost alltypes of shoes, except for banded or other open shoes. The separateinsole can be put into the shoe and taken out of it.

BACKGROUND ART

The patent DE3247686A1 has complicated construction with transverseauxiliary air pumping cavities and only two longitudinal holes are usedonly to transfer air to another part of the shoe. Also another existingpatents have complicated construction with various auxiliary air pumpingcavities and only 1 or 2 longitudinal holes are used only to transferair to another part of the shoe. Most of them require special shoeconstruction. Production of all existing constructions of ventilation ofshoes would be problematic to realize.

SUMMARY OF INVENTION

The separate insole 2 with the ventilation system is separatelyinsertable in the shoe and the separate insole 2 has longitudinalgrooves 1 downwards, which extend from the space of the heel to thespace of the toe through bottom surface an elastic foam layer of theseparate insole 2, where the rear ends of the longitudinal grooves 1have an air inlets in the space of the heel such that when the heel ofthe foot presses against the separate insole 2 during the beginningstep, the rear ends of the longitudinal grooves 1 are compressed and theair inlets thus closed and then, as the sole of the foot graduallytreads on the separate insole 2, the longitudinal grooves 1 aregradually compressed from the heel area towards the toe area and air isforced out of the longitudinal grooves 1 into the inner toe space of theshoe and, at the end of the step, when the toe of the separate insole 2is compressed, the front ends of the longitudinal grooves 1 arecompressed and the air outlets closed, but the heel of the foot isunloaded and the air inlets into the longitudinal grooves 1 are opened,and by gradually unloading the foot on the separate insole 2 from theheel towards the toe, air is sucked into the longitudinal grooves 1.

The rear ends of the longitudinal grooves 1 are opened in the space othe heel inlet holes 3.

The front ends of the longitudinal grooves 1 are opened in the space ofthe toe outlet holes 4.

The separate insole 2 is composed of the main 21 flexible foam layer anda flexible lid 22 which fixed to each other.

At least the surface of the longitudinal grooves 1 has an elasticsurface layer impermeable to air.

The tread surface of the separate insole 2, which is in contact with thesole of the foot, is made of leather or fabric.

The advantage of this separate insole with ventilation system is itssimplicity. The separate insole has only the longitudinal groovesdownwards and in this position is inserted in the shoe, the insole pumpsair into the inner toe space of the shoe. The separate insole isparticularly advantageous in terms of production and versatility. Easyto maintain cleanliness of separate insole.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 shows step-by-step pictures of the system's features through thegradual compression of the separate insole with the ventilation system.FIG. 2 shows the separate insole with longitudinal grooves of theventilation system. FIG. 3 shows a cross sectional view of the separateinsole. FIG. 4 shows a cross sectional view of the separate insole.

1. A shoes ventilation system, characterized in that the separate insole(2) with the ventilation system is separately insertable in the shoe andthe separate insole (2) has longitudinal grooves (1) downwards, whichextend from the space of the heel to the space of the toe through bottomsurface an elastic foam layer of the separate insole (2), where the rearends of the longitudinal grooves (1) have an air inlets in the space ofthe heel such that when the heel of the foot presses against theseparate insole (2) during the beginning step, the rear ends of thelongitudinal grooves (1) are compressed, and the air inlets thus dosedand then, as the sole of the foot gradually treads on the separateinsole (2), the longitudinal, grooves (1) are gradually compressed fromthe heel area towards the toe area and air is forced out of thelongitudinal grooves (1) into the inner toe space of the shoe and, atthe end of the step, when the toe of the separate insole (2) iscompressed, the front ends of the longitudinal grooves (1) arecompressed and the air outlets closed, but the heel of the foot isunloaded and the air inlets into the longitudinal grooves (1) areopened, and by gradually unloading the foot on the separate insole (2)from the heel towards the toe, air is sucked into the longitudinalgrooves (1).
 2. The shoes ventilation system according to claim 1,wherein the tear ends of the longitudinal grooves (1) are opened in thespace of the heel inlet holes (3).
 3. The shoes ventilation systemaccording to claim 1, wherein the front ends of the longitudinal grooves(1) are opened in the space of the toe outlet holes (4).
 4. The shoesventilation system according to claim 1, wherein the separate insole (2)is composed of the main (21) flexible foam layer and a flexible lid (22)which are fixed to each other.